Connected: An Internet Encyclopedia
RFC 1446 - 1.4. Security Services

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### 1.4. Security Services

The security services necessary to support the goals of a SNMPv2 security protocol are as follows.

Data Integrity

  is the provision of the property that data has not been altered or destroyed in an unauthorized manner, nor have data sequences been altered to an extent greater than can occur non-maliciously.

Data Origin Authentication

  is the provision of the property that the claimed origin of received data is corroborated.

Data Confidentiality

  is the provision of the property that information is not made available or disclosed to unauthorized individuals, entities, or processes.

The protocols specified in this memo require both data integrity and data origin authentication to be used at all times. For these protocols, it is not possible to realize data integrity without data origin authentication, nor is it possible to realize data origin authentication without data integrity.

Further, there is no provision for data confidentiality without both data integrity and data origin authentication.

Next: 1.5. Mechanisms

Connected: An Internet Encyclopedia
RFC 1446 - 1.4. Security Services